People who have quit smoking
have a lower chance of suffering a heart attack or stroke than current
smokers, even if they put on a few extra pounds in the process,
according to an international study.
The
long-term cardiovascular benefits of kicking the smoking habit have
been well-established, but researchers whose report appeared in the
Journal of the American Medical Association said that it’s been unclear
how the weight gain that often accompanies quitting fits into the
picture.
“Weight gain is a
real concern for smokers who want to quit and this might not only be an
aesthetic one,” said Carole Clair, from the University of Lausanne in
Switzerland and Massachusetts General Hospital in Boston. Parliament cigarettes.
“Overweight
and obesity are risk factors for coronary heart disease, and it has
been a concern that especially among people already at risk for
(cardiovascular disease), weight gain following smoking cessation might
cancel or at least decrease the benefits of smoking cessation,” she
added.
Smokers’ heart rate
and other body functions are revved up by nicotine, which may cause them
to burn slightly more calories than nonsmokers — so when they quit,
their metabolisms slow down.
Recent quitters tend to compensate for nicotine withdrawal by snacking, according to Clair — hence the weight gain.
She
and her colleagues analyzed data from a long-term study of 3,251 people
who took health surveys every four years between 1984 and 2011. At the
onset, just under one-third of those participants were smokers.
Over
an average of 25 years, 631 of all participants suffered a heart attack
or stroke, or developed heart failure or another type of cardiovascular
disease.
Both people who
said they’d quit smoking since their last check-in, and longer-term
quitters, were about half as likely to have heart problems as those who
were still using cigarettes.
Quitters
gained an average of 2.7 to 3.6 kilograms (6 to 8 pounds) after kicking
the habit, consistent with past research. But quit-related weight gain
had no clear effect on cardiovascular health, the team wrote.
“It’s
an understandable concern — might that weight gain offset the benefits
that are known for quitting smoking?” said Michael Fiore from the
University of Wisconsin School of Medicine and Public Health in Madison,
who co-wrote a commentary published with the study.
“This
is a good news story. You can be assured that if you quit smoking, even
with a little bit of weight gain, you’re going to achieve important
health benefits.”
He and
colleague Timothy Baker pointed out in their commentary that the new
study couldn’t zero in on the small proportion of people who gain more
than 9 kilograms (20 pounds) during a quit attempt. It’s possible those
former smokers might still be at risk for health problems tied to weight
gain.
Even if adding a few
kilos seems to be okay heart-wise, Fiore said there are steps quitters
can take to try to keep off extra weight.
“We
know that nicotine is an appetite suppressant, and when people quit
smoking they often have an urge to eat more food,” he said. “What we
need to do is ensure that the foods we’re eating are low-fat,
low-calories foods.”
In
addition, building a little more exercise into daily routines can also
blunt weight gain, while nicotine gums or lozenges might also help keep
weight gain under control.